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Watch: Go Behind the Scenes of the Visual Effects in 'Ender's Game'

We're just under a couple weeks out before Gavin Hood's adaptation of the classic sci-fi novel Ender's Game starring Asa Butterfield hits the big screen, and leading up to the release, we have a cool featurette that goes behind the scenes of the extensive visual effects which bring the film to life. Complete with talking heads from Hood, several of the producers, and even star Harrison Ford, the featurette gives us an idea of the work that went into building this world. As indicated in the video, the visual effects artists on Ender's Game spent 3,000 hours over three years before production on the film had even began. Watch below!

Here's the featurette Building Ender's World for the film Ender's Game via Summit:

Below is one of the pre-visualization animatics. As the video also indicates, a single shot in a film like this could have 20,000 layers. That includes lighting effects, smoke, stars, explosions, lasers, physical green screen footage, and more. If that's not enough, each layer could have another 12,000 elements in them.

70 years after a horrific alien war, an unusually gifted child is sent to an advanced military school in space to prepare for a future invasion.Ender's Game, based on Orson Scott Card's beloved 1985 novel of the same name, is written & directed by Gavin Hood (Tsotsi, Rendition, X-Men Origins) produced by Alex Kurtzman and Roberto Orci of K/O Paper Products. Asa Butterfield stars as Ender Wiggin, with Harrison Ford as Colonel Graff, plus Nonso Anozie, Moises Arias, Ben Kingsley, Hailee Steinfeld, Abigail Breslin and Viola Davis. Summit will be releasing Ender's Game in theaters everywhere November 1st later this year.